SciShow

Epigenetics

by SciShow 605,940 views

Hank & his clone Circus Hank explain the power of epigenetics, which studies the factors that determine how much or whether some genes are expressed in your body.

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More SciShow!
Solar Energy - http://youtu.be/4uPVZUTLAvA
Foldit Gamers FTW - http://youtu.be/JdBcpdH_ptA

Credits:
Produced by Hank Green
Chief Editor: Blake de Pastino
Cinematography: Nick Jenkins
Video Editor: Matt Ferguson
Graphics: Amber Bushnell
Written by Jesslyn Shields

TAGS: epigenetics, scishow, hank green, dna, genomes, cloning, clone, heredity, epigenome, methyl groups

Obesity

by SciShow 610,598 views

Hank tells us some of the surprising things that could be causing or contributing to the obesity epidemic.

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References linked to in Google Document here: http://dft.ba/-1Zl1

Credits:
Produced by Hank Green
Chief Editor: Blake de Pastino
Cinematography: Nick Jenkins
Video Editor: Matt Ferguson
Graphics: Amber Bushnell
Written by Jesslyn Shields
SciShow theme composed by Tom Milsom

TAGS: scishow, science, obesity, health, united states, america, hank green, diet, dieting, exercise, corndog, ryan gosling, fat, overweight, obese, mississippi, health food, industry, heart disease, cancer, type ii diabetes, calorie, sleep, sleep deprivation, climate control, cigarette, industrial chemical, resin, solvent, perfume, dye, pesticide, your mom, epigenetics, gut bacteria, symbiotic ecosystem, fecal transplant

Invasive Species: The Story of Bunny

by SciShow 256,686 views

Hank tells us the story of bunny and planet Wonderful, and the impacts of exotic invasive species on ecosystems while introducing us to a couple interesting individuals.

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References for this episode can be found in the Google document here: http://dft.ba/-2cWf

tags: science, biology, ecology, scishow, invasive species, exotic species, ecosystem, non-native species, starling, boa constrictor, kudzu, brown tree snake, guam, predator, competitor, extinct, extinction, biological control, mongoose, hawaii, asian clam, freshwater mussels, human, impact, florida

Let's Go To Mars

by SciShow 260,967 views

Hank discusses the challenges involved in manned space travel to Mars, and sends us a message from his 17-year-old self.

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References for this episode can be found in the Google document here: http://dft.ba/-2vTp

This video contains the following sounds from Freesound.org:
"Space Fighter Pass.wav" by Matt_G
"grenade.wav" by ljudman
"slot 6.mp3" by milton.
"Space Shuttle Launch.mp3" by CGEffex

mars, space, manned space flight, NASA, humanity, colonization, scishow, astronomy, science, hank green, mars exploration, space exploration, moon, space craft, booster vehicle, constellation, space launch system, SLS, space shuttle, orion multipurpose crew vehicle, asteroid, mars society, mars direct, space X, falcon heavy, radiation, isolation, mars desert research station, hanksville

Mass Extinctions

by SciShow 319,466 views

Hank takes us on a trip through time to revisit the 5 major mass extinction events that have impacted species over the Earth's history, and leaves us with some thoughts about what could possibly be the sixth event - the one caused by human activities.

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References for this episode can be found in the Google document here: http://bit.ly/KOHsM5

extinction, mass extinction, scishow, science, biology, climate change, species, great dying, geological time scale, co2, temperature change, extinction rate, time machine, ordovician-silurian, die-off, glacier, glacial, gondwana, pangea, gamma ray burst, hypernova, ozone layer, extinction pulse, asteroid impact, supervolcano, late devonian extinctions, permian-triassic, dinosaur, cretaceous-tertiary, k-t, human impact

Gregor Mendel: Great Minds

by SciShow 149,587 views

Hank brings us the story of Gregor Mendel, the Austrian monk who, with the help of a garden full of pea plants, discovered the fundamental properties of inheritance and paved the way for modern genetics. He also gives us the dirt on a scientific scandal that has followed Mendel beyond the grave.

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References:
Mendelian traits in humans: http://en.wikipedia.org/wiki/List_of_Mendelian_traits_in_hum­ans
& http://education.sdsc.edu/download/enrich/mendelian_traits.p­df

Mendel-Fisher Controversy - http://www.amjbot.org/content/88/5/737.full
& http://www.americanscientist.org/bookshelf/pub/csi-mendel

Mendel Biography - http://www.muskingum.edu/~psych/psycweb/history/mendel.htm
& http://www.dnaftb.org/2/bio.html

Mendel's genetics - http://anthro.palomar.edu/mendel/mendel_1.htm

Campbell Biology, 9th ed.

gregor mendel, austria, genetics, pea flowers, scandal, data, czech, augustinian monk, monk, abbot, monastery, brno, reproduction, heredity, inheritance, color, pea, gene, inherited traits, physical trait, breeding lines, experiment, allele, genotype, phenotype, dominant, recessive, law of segregation, law of independent assortment, father of modern genetics, ronald fisher, statistician, statistics, scandal, selective reporting, mendelian trait, science, scishow, great minds, hank green

A Brief History of Birth Control

by SciShow 380,092 views

Gym teacher Hank gives us the full story of the past, present, and future of birth control.

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References for this episode can be found in the Google document here: http://dft.ba/-35m1

Loretta Lynn "One's On The Way (The Pill)": http://www.youtube.com/watch?v=yMzSYyjNb74

scishow, science, sex, intercourse, sexual intercourse, reproduction, baby, infant, birth, pregnancy, pregnant, birth control, contraception, gym teacher, health, class, history, china, lead, mercury, europe, medieval, Canada, family planning, silphium, thera, greek island, greece, abortion, black plague, church, catholic, Catholicism, pope innocent viii, midwife, sterilization, barrier method, hormonal method, contragestion, abstinence, surgery, fallopian tube, vas deferens, sperm, egg, condom, diaphragm, ancient roman, ancient Egyptian, oral contraceptive, pill, estrogen, progesterone, uterus, intrauterine device, iud, fertilization, gestation, copper

Fritz Haber: Great Minds

by SciShow 187,372 views

Hank introduces us to the brilliant and heartless Fritz Haber, a great mind who is considered "the father chemical warfare," but who also made discoveries and innovations that helped lead to the Green Revolution which is credited with preventing the starvation of over a billion people.

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References for this episode can be found in the Google document here: http://dft.ba/-3ibK

fritz haber, great minds, scishow, science, physical chemistry, chemistry, polish, jewish, lutheran, academic, professor, nitrogen fixing, nitrogen fixation, invention, soil, fertilizer, ammonia, organic, agriculture, famine, bat guano, bomb, explosive, commercial, industrial, haber-bosch process, germany, synthetic, nitric acid, blockade, nitrate, WWI, mustard gas, gas mask, trenches, chemical weapon, chemical warfare, Nobel prize, war crime, reparations, gold, seawater, hitler, insecticide, environment, water quality, dead zone

Space Tourism

by SciShow 199,315 views

Hank takes on the role of our personal space travel agent, giving us the dirt on the various ways in which the exceptionally wealthy will be able to travel to space in the next few decades.

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For more on private space travel, check out http://spaceadventures.com/

References for this episode can be found in the Google document here: http://dft.ba/-1j_9

scishow, space, space tourism, russia, international space station, space adventures, private citizen, space walk, moon, suborbital flight, vehicle, virgin galactic, spaceship 1, pilot, launch system, runway, spaceship 2, fuel, engine, xcor aerospace, lynx, passenger, test flight, ticket, armadillo aerospace, hyperion, reentry, parachute, retrorocket, autopilot, blue origin, new shepard, jeff bezos, masten space systems, up aerospace, xogdor, vertical launch, altitude, conference, research, jeff greason, reliability, FAA, regulation

Nikola Tesla: Great Minds

by SciShow 351,029 views

Hank brings us the tale of the bizarre and eccentric genius with the crazy eyes who spent his life increasing awesome wherever he went, and contributed in some way to pretty much every cool invention you can think of. Nikola Tesla spoke eight languages and, at the time of his death, held over 700 patents and was being investigated by the US government for claiming to have invented a 60 million volt death ray. Tesla was an undisputed genius, and SciShow gold.




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References:
http://www.pbs.org/tesla/ll/index.html
http://www.teslauniverse.com/nikola-tesla-timeline-1856-birt­h-of-tesla
http://rinf.com/alt-news/sicence-technology/tesla-proven-rig­ht-as-technology-is-transmitted-wirelessly/
http://www.badassoftheweek.com/tesla.html

This video uses the following sounds from Freesound.org:
"Tesla ascending-m.wav" by Rmutt

scishow, nikola tesla, great minds, science, croatia, priest, engineer, new york, thomas edison, direct current, alternating current, power station, electricity, incandescent lightbulb, induction motor, invention, inventor, patent, george westinghouse, wireless, tesla coil, electronics, radio signals, transmit, receive, marconi, telegraphy, genius, america, remote control, energy, schematics, MIT, power plant, J.P. Morgan, wordenclyffe tower, long island sound, telegraph, stock market crash, nervous breakdown, pigeon, extra terrestrials, death beam, military, project nick

Facts about Human Evolution

by SciShow 530,339 views

Hank brings you the facts, as they are understood by scientists today, about the evolution of humans from our humble primate ancestors. On the way to becoming Homo sapiens, game-changing evolutionary breakthroughs led to the development of many hominin species, now all extinct. Hank will introduce us to these species & the breakthroughs responsible for their development, and help us understand the awesome ways in which they led to us.

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References and image licenses for this episode can be found in the Google document here: http://dft.ba/-2Akx

[Private Video]

The Manhattan Project

by SciShow 397,577 views

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Some of the greatest advances in science have come from humanity's more destructive impulses. This is not the fault of science - when we discover powerful truths about the universe it's up to us to decide how to use them because they can either be boons or banes to the world. There may be no better example of this than the work done by the Manhattan Project - the years long, multinational effort to develop an atomic bomb during World War II. The project created unfathomably destructive weapons and led to a 50 year Cold War with the USSR, but is also the source of a lot of information about the atom we didn't have before, which has led to advances in many beneficial fields, like energy production and medicine. Science, like history, is always complicated.

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References for this episode can be found in the Google document here: http://dft.ba/-4WtS

The Most Venomous Animals in the World

by SciShow 311,422 views

There are a lot of ways to kill and be killed in the animal kingdom, but only a lucky few use the powers of venom. Not all are closely related, so how did they acquire the same defenses, where did venom come from, and how does it work? And what animals can kill you the most quickly? Find the answers to these questions, and more, in today's episode of SciShow.

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References for this episode can be found in the Google document here: http://dft.ba/-5GmD

Thanks again to Dr. Bryan Fry at the University of Queensland.

Goodall, Fossey & Galdikas: Great Minds

by SciShow 102,665 views

Today we know that humans and chimpanzees share 99% of their DNA and that we have a lot in common. Not just how we look, but how we behave, form groups, defend our turf, and love each other. People didn't always see other primates this way, but in the 1960s and '70s, some amazing intrepid women came along to turn primatology on its hairy head. Jane Goodall, Dian Fossey and Birute Galdikas studied chimpanzees, gorillas and orangutans, respectively, and are the very definition of great minds of science. Their contributions to humanity's knowledge about its closest living relatives is the subject of today's SciShow: Great Minds.

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References for this episode can be found in the Google document here: http://dft.ba/-5RFg

7 Bizarre Uses for Animal Secretions

by SciShow 196,564 views

You're probably aware of lots of the things we take from animals, but for centuries, humans have been sneaking animal secretions into a bunch of things you probably didn't know about, like your Easter candy, your Mom's perfume, and even that cigarette you probably shouldn't be smoking. We also continue to enjoy delicacies that are only made possible because they come out of some animals' mouths, glands, and butts...
So, how many secretions have you slathered on or ingested lately? First you'll have to find out what they are and how they get into your body, which is what Hank will be telling you about in this episode of SciShow. Hooray!

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References for this episode can be found in the Google document here: http://dft.ba/-6lMY

Will You be Iron Man?

by SciShow 328,259 views

We have the technology! We can rebuild...ourselves!

Human interface technologies like Google Glass, robotic prosthetics, and bionic eyes have the potential to help people recover lost abilities, but also to grant us new abilities. Will you someday be able to turn on your super-human hearing just by thinking about it? Maybe...if you live long enough. The question of whether we /should/ well, we'll leave that to the philosophers. This is SciShow!

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